pinch and a punch for the first of the month
phraseologicalUnit
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(British, Ireland, Australia, New Zealand, South Africa) Said on the first day of a new month, while pinching and punching someone as a prank (especially by children). The victim may respond with "a flick and a kick for being so quick" and the original attacker may reply with "a punch in the eye for being so sly".
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(British, Ireland, Australia, New Zealand) More generally, a pair of attacks or setbacks at the start of something.